The move is retroactive to May 3, as Werth has been hampered by the injury and
unable to play for over a week. The club decided to place him on the disabled
list after he experienced a setback on Friday.

Werth has posted a .260 batting average with four homers and 10 RBI in 27
games this season. He's played in just one of the Nationals' last nine
contests.

To take his place on the roster, Washington recalled outfielder Eury Perez
from Triple-A Syracuse. Perez was batting .346 with seven stolen bases over 23
games with the Nationals' minor league affiliate.